References
- Bluhm , W. J. , Hungerford , H. R. , McBeth , W. C. and Volk , T. L. 1995 . “ The middle school report: A final report on the development and pilot assessment of the middle school environmental literacy instrument ” . In Environmental literacy/needs assessment project: Final report , Edited by: Wilke , R. Stevens Point , WI : University of Wisconsin-Stevens Point .
- Cheak , M. J. 1999 . The development and field testing of an instrument designed to measure cortical thinking in environmental education , Carbondale : Southern Illinois University . Unpublished doctoral dissertation